import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue'
import List from '../components/goods/List.vue'
import Add from '../components/goods/Add.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report.vue'

Vue.use(VueRouter)

const routes = []

const router = new VueRouter({
    routes: [{
        path: '/login',
        component: Login
    }, {
        path: '/',
        redirect: '/login'
    }, {
        path: '/home',
        component: Home,
        redirect: '/welcome',
        children: [{
            path: '/welcome',
            component: Welcome
        }, {
            path: '/users',
            component: Users
        }, {
            path: '/rights',
            component: Rights
        }, {
            path: '/roles',
            component: Roles
        }, {
            path: '/categories',
            component: Cate
        }, {
            path: '/params',
            component: Params
        }, {
            path: '/goods',
            component: List
        }, {
            path: '/goods/add',
            component: Add
        }, {
            path: '/orders',
            component: Order
        }, {
            path: '/reports',
            component: Report
        }]
    }]
})

// 挂载路由导航守卫

router.beforeEach((to, from, next) => {
    // to 将要访问的路径
    // from 从哪个路径跳转而来
    // next 是一个函数 表示放行
    // next()放行 next('/login')强制跳转到login

    // 访问登录页 直接放行
    if (to.path === '/login') return next();

    // 获取token
    const tokenStr = window.sessionStorage.getItem('token')
    if (!tokenStr) return next('/login')
    return next();
})

export default router